the biggest problem i know of is the aluminum heads and the cast manifolds heat up and cool at different rates and the manifolds leak causing the hot exaust to cut the head. past that my dad has 98 thousand i belive and hasent had a problem. it is running 35s the only bad thing is the 6.8 mpg ha

No wonder is that it in your avatar

I looked at a couple V10's before buying mine. The guy said in the summer he got around 10 and 7-9 in the winter or in 4wd. Big diff between that and the ~15 I get in the city and ~19 on the highway with 0 mods.